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SQL Server CREATE TABLE syntax diagrams

Many of us have seen, on MSDN, the heading 'Syntax', followed by a rash of nested brackets and keywords, enough to put off the most resolute of code-cutters. However, there is a goldmine of information there, and Phil had an ambition to get at it, and share the gold. The result is this article, full of railroad diagrams.

2013-07-01

4,367 reads

Technical Article

Export to XML Using SSIS

Exporting data to XML format using SSIS initially seems like it should be straight forward – just dump it in a flat file and give it a name xml type, however SSIS has no XML destination just an XML source. I had no luck dumping the XML in flat file. My solution was to use a script task which worked well.

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2013-06-27

3,831 reads

External Article

Painless management of a logging table in SQL Server

Tables that log a record of what happens in an application can get very large, easpecially if they're growing by half a billion rows a day. You'll very soon need to devise a scheduled routine to remove old records, but the DELETE statement just isn't a realistic option with that volume of data. Hugo Kornelis explains a pain-free technique for SQL Server.

2013-06-25

5,071 reads

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Adding new column with DEFAULT

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Question of the Day

Adding new column with DEFAULT

Which number will the COUNT() return after executing the following statements:

DROP TABLE IF EXISTS #test;
CREATE TABLE #test (id INT)
INSERT INTO #test (id)
SELECT *
  FROM GENERATE_SERIES(1, 3) AS gs
;

ALTER TABLE #test ADD flag BIT CONSTRAINT DF_#test_flag DEFAULT 0;
go
UPDATE #test SET flag = 0 WHERE id = 1
UPDATE #test SET flag = 1 WHERE id = 2

INSERT INTO #test (id) VALUES (4)

SELECT COUNT(*)
  FROM #test AS t
 WHERE flag = 0
 

See possible answers